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ChatGPT incident

Authentication errors for some users

Resolved after 1 h.

Started
Ended
Worst state
Partial outage
On ChatGPT’s status page
Source
Components
CLI, Codex API, Codex Web, Login, VS Code extension

Live ChatGPT status Full ChatGPT outage history

Timeline

  1. ChatGPT status page · Reported Authentication errors for some users
  2. ChatGPT status page · Investigating Some users near Illinois experienced authentication errors with the API, ChatGPT, and Codex.
  3. ChatGPT status page · Resolved On October 20, from 9:35 to 10:35 a.m. PDT, some users near Illinois experienced authentication errors with the API, ChatGPT, and Codex. We rolled back a configuration change, and service was restored.

Cite this incident

Site Qwality, “Authentication errors for some users,” Oct 20, 2026, https://siteqwality.com/is-chatgpt-down/incidents/chatgpt-202610201635/

Free to quote with a link to this page.